'Postzygotic barriers' diaporamas de présentation

The Origin of Species

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BIO 3A Fall 2011 Chapter 24 Origin of Species

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THE ORIGIN OF SPECIES

THE ORIGIN OF SPECIES. Microevolution explains evolutionary changes within a population. Macroevolution considers the origin of new taxonomic groups. SPECIATION. The origin of a new species Anagenesis (phyletic evolution)- describes the transformation of one species into a new species

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CQ#1: Speciation can only be observed over millions of years:

What is a Species? Speciation and the Maggot Fly by Joan Sharp Simon Fraser University Modified from a case by Martin G. Kelly, Buffalo State College. CQ#1: Speciation can only be observed over millions of years:. True False.

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Chapter 24: The Origin of Species

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Mechanisms of Evolution

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Speciation

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The Formation of Species

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Speciation

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Chapter 17

Chapter 17 . Microevolutionary Process. Where we left off. Darwin had come up with a mechanism for evolution called natural selection. It seemed to explain what had happened over long periods of time, based on the fossil evidence

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Chapter 16 ~ The Origin of Species

Chapter 16 ~ The Origin of Species. Macroevolution: the origin of new taxonomic groups. Speciation: the origin of new species

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